Ubuntu Security Notice USN-780-1 – Anibal Sacco discovered that CUPS did not properly handle certain network operations. A remote attacker could exploit this flaw and cause the CUPS server to crash, resulting in a denial of service.
You can download this advisory from the following link: https://packetstormsecurity.com/files/download/78081/USN-780-1.txt
Source: https://packetstormsecurity.com/files/78081/Ubuntu-Security-Notice-780-1.html